Bringing my Filipino GF to China with me, is it easy, or is it possible, if yes, what requirements we need for China tourist visa? :)

Dear Sir/Madam,

I am a British Citizen currently on a very long vacation within the Philippines. I have a Filipino GF and was wondering how easy is it to get her a Visa to visit China with me (Guangzhou)?

Also, we would like to be able to stay for an extended period of time, what kind of Visa would she need, and would i need, in order to be able to freely go in and out of China for extended periods of time before having to re-apply for a visa?

Thank you!